Largest building operators companies
Every US-listed building operators company we cover, 7 of them, ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$164.650 B
0.2% of all US-listed value
Companies
7
Ranked #75 of 152 industries
Average
$23.521 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | BrookfieldBN | $90.9B | $37.09 | -2.01% | Canada |
| 2 | Brookfield Asset ManagementBAM | $72.3B | $45.26 | -1.63% | Unknown |
| 3 | Piedmont Realty TrustPDM | $1.14B | $9.15 | -2.35% | United States |
| 4 | New England Realty Associates Limited PartnershipNEN | $144.3M | $52.00 | +0.06% | United States |
| 5 | Mays J WMAYS | $81.9M | $40.65 | -0.49% | United States |
| 6 | IntergroupINTG | $78.1M | $36.33 | -2.39% | United States |
| 7 | GyrodyneGYRO | $11.0M | $5.02 | -0.59% | United States |
All 7 companies. One row per company, with secondary share classes folded into their primary listing. Updated 24 Sept 2026.
Sectors building operators companies sit in
Other industries
Semiconductors 101Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 234Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 500Major Banks 246Industrial Machinery/Components 211Catalog/Specialty Distribution 31Business Services 93Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 18Investment Bankers/Brokers/Service 68Oil & Gas Production 116Real Estate Investment Trusts 177Department/Specialty Retail Stores 14Telecommunications Equipment 82Electronic Components 21Beverages (Production/Distribution) 36Finance: Consumer Services 162Electric Utilities: Central 60Consumer Electronics/Appliances 23Biotechnology: Biological Products (No Diagnostic Substances) 160Natural Gas Distribution 29All industries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.